Sheet-metal construction



Feb. 23 1926. 1,574,186 r H L. s. CHADWICK I SHEET METAL CONSTRUCTION Filed Jan. 27, 1922 2 Sheets-Sheet 1 Feb. 23 1926.

2 Sheets-Sheet 2 'ffil f/izax" M Filed Jan. 27, 1922 L S CHADWICK SHEET METAL CONSTRUCTION Patented Feb. 23, 1926.

unirs n ,srares. PATENT oFFicE.

LEE S. CHADWICK; O'F SHAKER HEIGHTS VILLAGE, OHIO, AQSIGNOR PERFECTION srovncor/tram, or CLEVELAND, care, A GG-RPOEATEON or cure.

SHEET-METAL consrnnorron.

Application filed January 27;, 1922. Serial No. 53-2g22 fi.

To all whom it. may concern:

Be it known that 1, LEE S. Crranwron, a citizen of the United States, residing at Shaker Heights Village, in the county of Cuyahoga and State of Ohio, have invented a certain. new and useful Improvement in Sheet-Metal Constructions, of which the following is a full, clear, and exact description, reference being had to the, accon'ipanying drawings. v

This invention relates to sheet metal fabrication and more particularly to an improved construction that is especially suitable for use in sheet metal stoves and like structures.

The objects of theinventiou are to provide a sheet metal construction for stoves and the like which is strong and durable and, as to the joints, is rigid; which expedites and cheapens manufacture; which greatly facilitates assembly and disassembly, the. latter, as for the purpose of shipment and storage; which is of such nature as to insure accuracy in the fitting together of the parts;v and which is very simple in structural details enabling those unskilled in the art to readily assemble it.

These objects, and others hereinafter appearing, are'obtained in the construction il' lustrated in the drawings accompanying and forming a part hereof and wherein Fig. 1 is a partial front elevation of a sheet metal stove structure embodying my invention; Fig. 2 is a detail of the corner construction on a scale somewhat enlarged over that of Fig. 1; Fig. 3 is a plan view of the corner construction .with the corner of the top broken away to show the parts therebelow in elevation; Figs. il and 5 are sections on the respective lines f d and 55 of Fig.2; and Fig. 6 shows in perspective several of the parts of the structure in separated condition yet suggesting their relation in the structure.

The particular structure wherein I have shown my in'iprovernents incorporated is that of a sheet metal stove o't-th-e class in which liquid fuel burners are employed, the same comprising, generally, a top, a sub structure whereon the top is supported, and legs which sustain the sub-structure at a suitable elevation; The top is designated 1, an end panel is indicated at 2, one of the legs is shown at 3-, the base whereon the burners (not shown) are supported 1s designated l, and a drip pan is indicated at 5. All of, these parts are of sheet metal and the top, has a depending peripheral flange (3, while the front edge portion of the end panel 2 is turned inwardly at right angles to the plane of its body portion. to provide a flange K. It is to be understood that the two. ends of the stove are identical, and a back wall 8 extends from one end panel. to the other and from the top 1 to the base l.

lVit-hin each of the top corners of the structure there is a bracket 10, shown inv perspectivc in Fig. can the same comprises three parts each of which is disposed at right angles to the othertwo, and they consist of a triangular part 11 that is arranged for engagenicnt with the under surface of' the top 1, and parts 12 and13 which overlie the adjacent portion of the end panel 2 and the upper end of its flange 7, respectively. The brackets 10 are interchangeable among the four top corners of the structure, and when used in the rearcorners the parts 12 and 13 engage the end. panels 2 and the back wall 8. The parts 12 and 13 are secured to the elements which they overhang by rivets, or the like, 15., and also by having lugs 16 at their lower ends engaged through slots 17 in said elements and to the rear of which they are: turned downwardly,- as clearly shown in. Fig. 4;. By this means, the brackets are securely attached to the aforesaid elements and effectually maintain them in right angular relation to each other, or whatever angle there might be between the parts 12 and 13, assuming that in certain constructions-it might be desirable to have said elements disposed at other than right angles toward each other- Attention is called to the fact that tl'iroughout the region of the angle 7 in the present illustration, are cut away downwardly from their upper ends to a depth. equal to or slightly greater than the thickness of the part 11 of the corner ,bracket so. that when the bracket is attached to said elements its upper surface will be in the planc'of the major portion of the upper edge of the end panel The panel is flanged inwardly throughout such major portion, as indi ated at 20, and the bacl; panel is likewise-flanged inwardly, as shown at 21 in Fig. 2, so that a satisfactory bearing surface is provided for the top 1 along each end and along the back 'Iriangular gussets 25 afford a support for the front portion of the top wall inwardly some distance from the ends. These. gussets are shown as of sheet metal, and extending rearwardly from the top and side edges of the triangular front portion. of each gusset are flanges 26 and 27, respectively, while stability is impartedto the gusset by aflange 28 that is turned inwardly along the inclined edge of the'front portion, such quality being further enhanced by the head 29 which is formed in said triangular por tion adj acentand parallel to said inclined Tongues 30, strengthened-by beads 31, are struck from the parts 12 and 13 of each corner bracket 10, and these tongues project outwardly and then downwardly from said parts and are spaced from the outer "surfaces thereof a distance substantially equal to the aggregate thickness of the metal whereof the formed.

Each leg 3 consists of an angle member,

the flanges whereof are gradually reduced in width from the" base etc the lower end of the leg, the leg flaring outwardly somewhat toward its lower end, as shown in Fig.1.

In assemblingtl'ie parts, the gusset 25 at each end of the structureis engaged about the front flanged edge of the corresponding end panel 2 in the manner illustrated in Fig. 6 and it is slid upwardly until the inflange 27, and the portion of the triangular face of the gusset adjacent thereto are beneath the'tongues 30 of the bracket. The leg 3 isthen slid up beneath the tongues 30 and brought into firm engagement with their outwardly extending portions, at which time apertures in the flanges of the, leg

register withholes in the based and end panel 2 so that bolts 35, or the like, may be engaged therethrough to firmly bind the parts together. This insures the leg from becoming disengaged from the tongues of the corner bracket. The lower portions of the four legs of the structure are tied toget er through the drip pan 5 to which they "are attached by bolts 36, orthe like. The

top 1 rests upon the flanges 20 and 21 of the and panels 2 and back wall 8, respectively, while'the flanges 26 of the gussets 25 en" gage the under surface ofthe top, as indigusset 25 andle'g 3' are,

' struction for sheet metal structures, and my improvements insure accuracy in the fitting of 'the'parts together, and greatly facilitates assembly and disassembly. 4

In this latter connection it may be well to point out the fundamental purpose of the lugs 16 which extend from the lower ends of the parts 12 and 13 of the corner brackets and are engagedthrough slots 17 in the elements which said parts overlie. By such a construction, blunt ends are avoided against which the gusset-s 25 and the upper ends of the legs 3 might abut when inserting them upwardly into the sockets provided by-the tongues 30, which, it willbe observed, are concealed by the depending flange of the stove top.

IIaving thus described my invention, what I claim is:

1. In a construction of the character set forth, the combination of three walls disposed at a given angle one to the others, a corner bracket having three parts correspondingly related, one of said parts being arranged to engage the inner surface of one wall while the other two parts are arranged to overlie the adjacent surface of the other walls, and means connecting the first mentioned'part to the wall whose inner surface it engages, the other two parts having portions interlocking with portions of the walls which said parts overlie.

2. In a construction of the character set forth, the cmubination of three walls disposed at agiven angle one'to the others, a

cornerbracket having three parts correspondin lv related one of'said )arts bein arranged to engage the inner surface of one wall while the other two parts are arranged to overlie the adjacent outer surface of the other walls, and n'leans connecting the first mentioned part to the wall whose inner surface it engages, the other two parts having tongues extending through slots in the walls which said parts overlie.

3. In a construction of the character set forth, the combination of three walls disposed at a given angle one to the others, the inner side of one of the walls engaging the ends of the others, a corner brackethaving threeparts that are disposed one to the thers at the aforesaid given angle, one of said parts being arranged to engage said inner side of said first mentioned walland correspondingly related, one of said parts engaging toe inner surface of one wall while,

the other two parts overlie the outer surfaces of the other walls, means securing the *alls to the respective parts of the bracket, the parts of the bracket overlying said other walls having tongues that are offset outardly from their outer surfaces, and a leg of angle formation embracing the corner formed by the meeting of said other walls and having its end engaged beneath the aforesaid tongues of the corner bracket, and means securing the leg tothe structure so as to prevent the withdrawal of its end from beneath said tongues.

5. In a construction of the character set forth, the combination of a top wall, two vertical walls disposed at right angles to each other, a corner bracket having three parts each of which is disposed at right angles to the other parts, one of said parts being arranged for engagement with the under surface of the top wall while the other two parts overlie the outer surfaces of the vertical walls adjacent their upper ends, means securing the walls to respective parts of the bracket, the parts of the bracket which overlie the vertical walls having outwardly and downwardly projecting tongues,

a leg of angle formation embracing the corner formed by the meeting of the vertical walls and having its upper end engaged beneath the tongues of the bracket, a base supported horizontally within the vertical walls a suitable distance below the top, and means securing the base, the vertical walls, and the leg together.

6. In a construction of the character set forth, the combination of a top wall, an end panel having its upper edge engaging the underneath surface of the top wall, the, front edge of the end panel being flanged inwardly at right angles, a corner bracket comprising a horizontal part overlying the upper ends of the end panel and its right angle flange and having depending parts at right angles to the former part and at right angles to each other and which overlie respectively the end panel and its flange, means securing the depending parts of the bracket to the end panel and flange, said depending parts having lugs extending through slots in the panel and its flange and being provided with outwardly and downwardly extending tongues, a gusset having a vertical wall engaged against the flange of the end panel and having a right angle flange engaging the outer surface of the end panel, the gusset being provided with a horizontal flange at its upper edge which is at rightangies to the former flange and which is adapted to be supported in the plane of the upper edge of the end panel, a leg of angle formation embracing the corner formed by the meeting of the end panel and its flange, the gusset being confined between said parts and the leg, while the upper end of the leg is en gaged beneath the tongues of the corner bracket, means securing the leg to the end panel at a point spaced a suitable distance below the top, and means for securing the top to'the horizontal part of the corner bracket and to the horizontal flange-of the gusset.

7. In construction will the character set forth, thecombi nation of a top wall, an end panel having its upper edge engaging the underneath surface of the top wall, the front edge of the end panel being flanged inwardly at right angles, a corner bracket comprising a horizontal part overlying the upper ends of the end panel and its right 7 angle flange, the panel and flange being cut away to a depth substantially equal to the thickness of the said horizontal part of the bracket, the bracket having depending parts at right angles to the former part and at right angles to each other and which overlie respectively the end panel and its flange,

means securing the depending. parts of the bracket to the end panel and flange, said depending parts having lugs extending through slots in the panel and its flange and being provided with outwardly and dowin wardlv extending tongues, a gusset having a vertical wall engaged against the flange of the end panel and having a right angle flange engaging'the outer surface of the end panel, the gusset being provided with a horizontal flange at its upper edge which is at right angles to the former flange and which is adapted to be supported in the plane of the upper edge of the end panel with the inner end of the last mentioned flange beneath the horizontal part of the bracket, a leg of angle formation embracing the corner formed by the end panel and its flange, with the gusset confined between said parts and the leg while the upper end of the leg is engaged beneath the tongues of the corner bracket, means securing the leg to the end panel at a point spaced below the top, and means: for securing the top to the horizontal partof the corner bracket and to the horizontal flange of the gusset.

8". In a construction of the character set forth, the combination of an end panel hav ing a right angle flange at its forward edge, a corner bracket having a horizontal part disposed above the corner formed by the end panel and its flange andhaving depending portions overlying the outer surfaces of said parts means permanently securing the corner bracket to the end panel, a top adapted to rest upon the end panel and u )on the horizontal part of the corner bracket, means for detachably connecting the top to said bracket, a gusset within the angle between the top and the ,end panel and adapted to interlit with parts of the corner bracket, means for detachably connecting the top to said gusset, and a leg adapted to embrace the corner formed by the end panel and its flange and to confine betweensaid parts and itselfthe aforesaid gusset, the bracket having a leg receiving part into holding engagement with which theleg is adapted to be presented upwardly, and means for detachably connecting the leg to the end panel to withhold it against down *ard movement.

9. In a construction of the character set forth, the combination of a horizontal top wall, vertical walls disposed at right angles to eachother and whereon the top is supported, a corner b 'acket secured to the upper ends of the vertical walls, said bracket having a leg receiving portion into which a leg is adapted to be inserted upwardly, means'detachablv connecting the top to the corner bracket, and a leg of angle formation designed to embrace the corner formed by the meeting of the vertical walls and adapted to have its end engaged within the leg receiving part of the bracket, and means for detachably connecting the leg to the structure so as to prevent the withdrawl of its upper end from the leg receiving part of the bracket. i

1.0. In a construction of the character set forth, the combination of vertical'walls arvertical walls and having its upperend engaged beneath the tongues of the bracket, means securing the leg against vertical movement with respect to the walls thereby to prevent the withdrawl of its upper end from/beneath the aforesaid tongues, a top resting upon the vertical walls, and means connecting the top to the horizontal part of the bracket. v

11. A stove structure comprising a rectangular top, end panels, and a member extending between and connecting the end panels, four brackets situated at the respec tive corners of the structure, each having three parts disposed at right angles one to the others, one part being attached to the top ing a horizontal part overlying the upper ends of the end panel audits right angle flange and having depending parts at righ angles to the former part. and at right angler".

'to each other and which overlie respectively the end panel and itsflange means securing the bracket to the end panel, a leg of angle formationembracing the corner formed by the meeting of the end panel and its flange, the upper end of said leg interengaging with parts of the bracketthere-by to be held against lateral displacement, and means securing the leg to the end panel at a point spaceda suitable distance below the top.

13. In a construction of the character set fortlnthe combination of a horizontal top wall,-vert1cal walls whereon the top wall is l supported, bracketssecured to the upper ends ofthe vertical walls, said brackets having leg-receiving portions into which legs are adapted to be inserted upwardly, legs of angle formation designed to embrace the edges of the vertical walls and adapted to have their upper ends interengaged with parts of the bracket, and means for cletachably connecting the legs to the structure soas to prevent disengagement of their upper ends from the brackets.

14. In a stove structure, the combination I of a top, brackets whereon the top. is supported, said brackets having leg receiving sockets, legs having their upper ends engaged in said sockets, and means securing the legs to the structure at points below said sockets.

15. In a stove of the character set forth, the combination of a top, a sub-structure whereon the top is supported, said sub-structure incorporating brackets having leg receiving sockets, legs having their upper ends engaged in said sockets, and means securing the legs to the substructure below the brackets.

In testimony whereof, I hereunto allix my signatru'e. Y

LEE S. CHADIVIGK. 

